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I have a line :

Check space in www.raja.server.local.com and it is 40% full in /usr

I want to just parse www.raja.server.local.com from above line.

Note: www.raja.server.local.com can be any where in the line.

  • This question makes no sense unless the hostname changes with different lines. – h0tw1r3 Dec 9 '15 at 23:07
  • @h0tw1r3 Hello there , hostname will change but local.com will not change. It will exist in everyline but position of the local.com can be any where in the line – rɑːdʒɑ Dec 9 '15 at 23:10
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If your question can be reworded as "print all space-separated fields ending in .local.com", then the following should do it (using GNU grep):

grep -Eo '[^ ]+\.local\.com\b'
  • No , everytime it will not be 4th field . – rɑːdʒɑ Dec 9 '15 at 23:03
  • I updated my answer to hopefully match your clarified question. – dhag Dec 10 '15 at 3:34
  • I will check and update you. – rɑːdʒɑ Dec 10 '15 at 4:20
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Fragile, but it's an answer...

awk '/\.local\.com/ { x=gensub(/.* ([^\ ]+\.local\.com).*/,"\\1","1"); print x }'

A better solution would be to use back references.

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